Today's installment of campaign-related news items from across the country.
* For the fourth time in four contests, turnout in the Republican caucuses in Nevada broke a record for turnout.
* Marc Short, the head of Freedom Partners, the central organization of the Koch brothers' political network, is leaving the group to join Marco Rubio's campaign team.
* Rubio also continues to recruit Republican mega-donors. Billionaire coal magnate Joe Craft acknowledged yesterday that he's supporting the Florida senator.
* The latest University of Texas/Texas Tribune Poll shows Hillary Clinton leading Bernie Sanders among Lone Star State Democrats, 54% to 44%. The delegate-rich state is one of several that will host a primary next Tuesday.
* The same poll shows Ted Cruz leading in his home state with 37% among Republican voters, followed by Donald Trump's 29%. Rubio is further back with 15%.
* In Ohio, which hosts its primary on March 15, the latest Quinnipiac poll found Clinton leading Sanders by 15 points, 55% to 40%.
* Clinton is in even better shape in Georgia, which holds its primary next week, and where an WSB-TV poll shows her with an overwhelming advantage of 72% to 20%.
* While GOP officials throughout the party establishment are scurrying to support Rubio, GOP officials just outside the establishment still like Cruz. Rep. Justin Amash (R-Mich.) threw his support to the Texas senator this week.
* And Ted Cruz's team continues to strike back in court against those challenging his presidential eligibility, making court filings like these. His detractors, meanwhile, continue to take aim at his defense.